FWIW, this is my desk:
1 x Big Vika Amon table top $30
1 x Medium Vika Amon table top $20 (I already had it)
8 x Vika Curry legs $32 (I already had 4) (you could use only 6 of them to save $8)
2 small metal plates to hold them together in L. (~$2) It works really well, with absolutely no play, and virtually no gap between the two table tops.
Total: about 20sq.ft: $84
Because I hate cables, and like to have as much space as possible to put my own mess, I also made this for the router (it cost about 3€):
For an extra $10 you can get the Signum cable grille and (almost) forget the cables:
I also had an Ikea PS cabinet (from back when they still made them in black). It's great because it comes with a hole at the bottom to put cables through (I made another hole in the back, at mid-height, to run the USB and FW cables)
This is the end result:
On this picture, you can see:
A MacBook Pro.
Two speakers
Phone
Two keyboards
A Wacom tablet
A mouse
A monitor (alternating between the PC and the Mac)
The all in one printer
And, hidden:
A router
A whole desktop PC
External speakers for the PC
An iPod cable
An iPod shuffle dock
The MBP spare battery
A USB Hub
A FW 800 Sandisk CF card reader
A USB CF card reader velcro'd to the back of the monitor.
Ten (or so) USB and FW hard drives, that can all be connected at the same time to the Mac (except one or two), like the iPod, with the flip of a switch.
The multiplug under the table (on the Signum grille) powers everything that stays always on (the router and the Mac, namely, plus the lamp, phone, and speakers). There's another multiplug under the cabinet (it'll soon go inside) that powers everything that's not constantly on (printer, hard drives, PC, monitor...) so there's no unnecessary power loss.
I also got some cable staples to make sure cables stay on the wall (did I mention I hate cables?)
Oh, and I put a couple of those LED AA battery adhesive lamps in the cabinet to help me see if I need to connect something.
That's it
